What is a lamb?
A lamb is a young male or female sheep under the age of 12 months.
A lamb is an herbivorous mammal, so it feeds on milk from its mother and begins to eat grass. When it matures, it stops feeding on milk and grazes on grass. It is a grazer.

The average weight of an adult sheep is 90-159 kilograms (200-350 pounds), whereas the average weight of a lamb is 36-54 kilograms (80-120 pounds).
When a lamb is over the age of 12 months, it is called a sheep. The male sheep is a ram and the female sheep is a ewe.

Location of photographs: Germany
Photographer: H. Uhthoff
Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM